After copying that Go in to your Blogger dashboard then just click on Settings tab >>> then click on Search Preferences. After that Click on the "Google Search Console" Edit option. It will automatically redirect you to your search console.

Click on the ADD Property section and Paste your blogger URL , after that Click add Button. You are going to see a New Search console dashboard.

Scroll down to Crawl option and click it , Then Click Sitemap >>> Then click on ADD/TEST Sitemap.

Then Submit this blogger sitemap, or the one you copied earlier “atom.xml?redirect=false&start-index=1&max-results=500”

After that stel just on Click Refresh tab and Your Sitemap is submitted to google and your site updates will now be indexed by Google bot.

Your website is now added in to google. Within Few hours later your web pages will be now visible on Google search engine